Applying the Pomodoro technique and Lock screen with the aim of dividing study and rest time regularly, and can warn users to look away from smartphones or other electronic items during breaks.

Developers Goals:
- Develop and explore the creation of mobile-based learning applications, which are implemented using the Pomodoro method and lock screens that can be used by all students.

- Manage study time with good rest, and provide an early warning after each study is finished, in order to provide early warning to avoid CVS

As for the benefits:
- Make it easier for students to focus on learning due to good management of rest and study time

- Makes users interested in using Locktimer because of the implementation of the Pomodoro method and the lock screen simultaneously, and there is a clock animation in it

- Equip students with CVS knowledge in order to minimize the occurrence of CVS disturbances